We will get the molality from this formula:
Molality = no.of moles of solute / Kg of solvent
So first we need the no.of moles of KNO3 = the mass of KNO3 / molar mass of KNO3
no.of moles of KNO3 = 175 / 101.01 = 1.73 mol
By substitution in the molality formula:
∴ molality = 1.73 / (750/1000) = 2.3 Molal
Answer:
Graduated cylinders are designed for accurate measurements of liquids with a much smaller error than beakers. They are thinner than a beaker, have many more graduation marks, and are designed to be within 0.5-1% error. ... Therefore, this more precise relative of the beaker is just as critical to almost every laboratory.
Explanation:
hope this helped!
Answer:
Why do we all not know the answer to this on the practical
Explanation:
In the group 3 to group 12 of elements, it is the d subshell
that filled up going across the rows,.
In the d-block of the periodic table, we have the Zinc, Cadmium, and
Mercury. This corresponds to the teams 3
to 12 of the periodic table.